180 53220A/53230A User’s Guide
5 Triggering and Gating
[SENSe:]GATE:STARt:SLOPe {POSitive|NEGative}
[SENSe:]:GATE:START:SLOPe? (query form)
POSitive starts (opens) the gate on a positive edge on the Gate In/Out BNC
or channel 1/channel 2 input. NEGative starts the measurement on a nega-
tive edge on the Gate In/Out BNC or channel 1/channel 2 input. The gate is
stopped (closed) based on the corresponding stop gate settings.
Following a reset (*RST) or instrument preset (SYSTem:PRESet or Preset
key), a negative slope is selected.
External Gate Start Signal Threshold
For external sources INPut[1] and INPut2 (Chan 1 and Chan 2 softkeys), a
fixed input threshold voltage must also be specified in addition to the gate sig-
nal slope. This is done using the command:
INPut[{1|2}]:LEVel[{1|2}][:ABSolute]{<volts>|MINimum|
MAXimum|DEFault}
INPut[{1|2}]:LEVel[{1|2}][:ABSolute]?[{MINimum|MAXimum|
DEFault}] (query form)
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